Bag-holder.



T. J. STURTEVANT.

BAG HOLDER.

APPLICATION FILEDIDEILZZ, 1915.

1,173,224.. Patented Feb. 29, 1916.

THE COLUMBIA PL-ANOGRAPH (0., WASHINGTON, n. c.

, THOMAS JOSEPH STUBTEVANT, 01's WELLESLEY, MASSACHUSETTS, ASSIGNOB TO STURTEVANT MILL COMPANY, A CORPORATION OF IMAINE.

BAG-HOLDER il vaaaa.

Specification of Letters Patent.

Application filed December 22, 1915. Serial No. 68,182.

To all whom it may concern:

Be it known that I, THOMAS J STURTIF following is a specification, reference being had therein to the accompanying drawing. This inventlon relates to a device for holding bags or sacks while being filled, and

has'for its object to provide a bag holder which is simple in construction and efficient in operation, and which is adaptedto hold bags of, different sizes, and which may, if

1 desired, be attached to the hopper of a weighing or other machine;

In the accompanying drawing Figures 1 and 2 are side views of the improved bag holder in'opened and closed positions, re-

" spec'tively. Figseii and' l are front and rear views, respectively, of the same.

Referring to the drawing, 12 denotes a holder or support herein shown as being in the form of a hopper which is adapted to be attached to the hopper of a weighing machine, or to the hopper of other machines from which the material will be dumped into a bagthe mouth of which will be held open by the bag holder. The hopper'12, in

' the construction herein shown, is provided with a horizontal flange 13 preferably having upwardly extending lips 14: at its opposite sides, and is also provided with a rearwardly extending arm 15 carrying a finger 16. The hopper is also provided with side projections 17 having eye portions 18 or other projections adapted to receive screws or bolts by which the said hopper may be attached to the hopper of a weighing or other machine or to any other suitable support.

Pivoted to the rearwardly extending arm 15, in the form of the invention herein shown, are two levers 19 which are connected together at their forward ends so as to form a loop or hoop embracing the hopper, said loop or hoop being connected at its forward end by a link 20 to an arm of a bell-crank lever 21 pivotally mounted on a lug 22 with which the upper part or rim downwardly extending gripping aws 23 so disposed as to come within the upwardly extending lips 14 from which they are suitably spaced to leave room for portions of a bag which is to be placed on the outside of the flange 13, and which will be gripped between the said flange, (portions of which serve as fixed jaws) and the movable jaws' 23, when the latter are in lowered or closed position. The movable gripping jaws 23 are preferably inclined relative to the levers 19 the pivotal point of which is, in the construction herein shown, above the flange 13 of the hopper, so that when the said jaws are in closed or gripping position they will bear properly on the said flange 13.

.The levers 19 are joined together at the rear of the hopper by a stirrup 24 which is perforated for the reception of a vertically movable bolt 25 mounted in the rearwardly pr jecting arms 15, said bolt being encircled by a lifting spring 26 placed beneath a nut 27 on said bolt, so that when the ripping jaws are released from their holding position they will be lifted by the said spring.

In the operation "of the invention a bag to be filled will be adjusted on the outside of the holder, and the bell-crank lever 21 will be moved from the position shown in Fig. 1 to the position shown in Fig. 2 to cause the gripping jaws to engage the sides of the bag which will be held open beneath the hopper 12. It will be noted that the link 20 and the lower arm of the bell-crank lever 21 form a toggle device which is set 'when the jaws are in the gripping position shown in Fig. 2, and in which gripping position the said link and the lower arm of said lever are brought into alinement to set the toggle, so that the movable jaws23 will be held orinaintained in fixed positions by said toggle to strongly grip the open bag to the hopper or holder. \Vhen the bellcrank lever 21 is raised slightly from the bag-holding position shown in Fig. 2, sufficient to break the set toggle, the lifting spring 26 will, through the bolt 25 and stirrup 2-1. serve to automatically raise the gripping jaws and hold the same in lifted position until the bag holder is again closed by turning down the upper arm of the bellcrank lever 21.

If a bag having a mouth which is con- Patented Feb. 2a, 1916.

siderably larger" than the bottom of the hopper 12 is to be applied to the bag holder, one portion of the mouth of said bag may be adjusted on to the depending finger 16 by which it will be held as the bag is pulled forward when the bag holder is closed. To prevent the gripping portions of the bag holder from being clogged by material those portions'of the flange 13 on the holder or hopper 12, or the upwardly projecting lips 14, are preferably provided with openings or perforations '13 which will permit any material which maylodge on these portions of the said flange to fall through .or OE, and

thereby prevent the gripping portions of the holder from becoming clogged.

From the foregoing it will be understood that this invention provides a convenient b'ag holder which is adapted to hold bags having mouths of different sizes. -Also the invention is not to be understood as being Y limited to the details herein shown, as such details may be varied widely, within the limits of mechanical skill, without departingfrom the spirit andscope of the invention.

Having thus described my invention I claim anddesire to secure by Letters Patent:

1. A bag holder 'comprising fixed and movable jaws between which a bag is to be held, a pivoted device by which said movable jaws are carried, a link jointed to said pivoted device, and a bell-crank lever one arm of which is jointed to said link to form a toggle, and the other arm of which serves as an operating handle.

2. A bag holder comprising fixed and movable jaws between which a bag is to be held, a pivoted device by which said movable jaws are carried, and a toggle device,

comprising two members adapted to be brought into alinement in closing the holder, said toggle devlce thus mamtannng the gripping aws 1n gripping POSltlOl'l.

3. A bag holder comprising the combination with a suitable support provided with fixed holding means, of a device pivotally attached to said support and provided with movable holding means, and a toggle device, comprising two members adapted to be brought-into alinement in closing said movable holding means against saidfixed hold Copies of this patent may be obtained for five cents each, by addressing the-Commissioner of Patents,-

s, said 3 toggle-device thus m aintainng the holder closed. I

at. A bag holder comprising the comblna- 'tion with a suitable support provided with fixed holding means, "of a device pivotally attached to said support and provided with movable holding means, a toggle device,

comprising two members adapted to be. brought into ahnement 1n closmg sald mov- "able holding means against'said fixed hold- 5. A bag holder consisting of the combi nation with a hopper provided at its bottom with a horizontal flange havingupwardly extending lips on opposite sides of saidhop per, of a movable device pivoted to'saidv hopper and provided with gripping jaws co- 7 operating with said flange and lips, a' toggle dev1ce,compr1s1ng two members adapted to be brought into alinement-in closing the movable jaws, anda spring operatively connected with said pivoted device to lift the same when the gripping jaws are released. v

6. In a bag holder, the combination with a hopper having a horizontallyextending jaws, are providedwith vertical clearing openings, of movable jaws cooperating with said flange.

7 In a bagholder, the combination with flange, portions of which, serving as fixed a; hopper, of fixed jaws located at opposite sides of said hopper, movable jaws also 10- cated at opposite sides of said hopper and adapted to be brought into holding engagement with said fixed jaws, and fixed means,

extending beyond the side of said'hopper;

for holding part of the mouth-of a bag.

8. In a bag holder, the combination with a hopper, of fixed jaws located at opposite sides of said hopper, movable jaws also lo cated at opposite sides of said hopper and adapted to be brought into holdingengage- 7 ment with sald fixed jaws, and a fixed" hanger, extending beyond the side of said hopper, for holding part'of the mouth'of a bag. V V

In testimony whereof I aliix my signature.

THOMAS Josrrii STURTEVANT;

Washington. D. C. 

